PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: === null vs. == null

No Description

Run this test again Return to test menu

Historical Results

Based on (2) saved test runs, The test labeled "=== null" was (on average) the faster by 0.0167 seconds, (2.985% faster)

=== null 100%
== null 97.015%

The === null test took 0.5415 seconds.
The == null test took 0.5582 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 152,130 loops for a total of 3,042,600 runs.

  • Line execution difference (0.000005) milliseconds.
  • Avg difference (0.000) milliseconds per 152,130 loops.
  • Total difference 16.66 milliseconds for 3,042,600 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "=== null", was:

for ($j = 0; $j < 100; $j++)
{
	$GLOBALS['dummy3'] = $GLOBALS['dummy1'] === null;
	$GLOBALS['dummy3'] += $GLOBALS['dummy2'] === null;
}

The second test, "== null", was:

for ($j = 0; $j < 100; $j++)
{
	$GLOBALS['dummy3'] = $GLOBALS['dummy1'] == null;
	$GLOBALS['dummy3'] += $GLOBALS['dummy2'] == null;
}

Running: Linux (x86_64:1 GB) PHP (7.2.19-1+ubuntu16.04.1+deb.sury.org+1)